The canal described in the text is approximately 30 meters wide with an average depth of 12 feet in the main boat channel. However, closer to the bank, the depth shallows to between 6-9 feet. The water flow in the canal is usually slow towards Goole, but it has the ability to reverse or stop depending on how the locks are operated. Overall, the canal provides a navigable route for boats, with varying depths and water flow dynamics to consider when traversing its waters.